#B73035#B73035

#B73035 is a mid, vivid red. Relative luminance 0.124; OKLCH L 52.0% C 0.171 H 23.7°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#B73035
RGB	rgb(183, 48, 53)
HSL	hsl(358, 58%, 45%)
HSV	hsv(358, 74%, 72%)
CMYK	cmyk(0%, 73.8%, 71%, 28.2%)
CIE-LAB	lab(41.91, 53.76, 29.93)
CIE-LCH	lch(41.91, 61.53, 29.10°)
OKLab	oklab(52% 0.157 0.0688)
OKLCH	oklch(52% 0.171 23.7)
XYZ	xyz(21.2304, 12.4414, 4.6510)
Luminance	0.1244 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B73035 #30B7B2

analogous

#B73078 #B73035 #B76F30

triadic

#B73035 #35B730 #3035B7

tetradic

#B73035 #78B730 #30B7B2 #6F30B7

square

#B73035 #78B730 #30B7B2 #6F30B7

split-complementary

#B73035 #30B76F #3078B7

monochromatic

#561719 #872327 #B73035 #D25257 #DE8386

Accessibility & contrast

On white

6.02

#B73035 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#B73035 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B73035

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B73035	#FFFFFF	#000000	##FFFFFF
##B73035	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575034

Deuteranopia (green-blind)

#796D31

Tritanopia (blue-blind)

#C90033

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b73035;
/* rgb */ color: rgb(183, 48, 53);
/* oklch */ color: oklch(52.0% 0.171 23.7);

Tailwind

colors: {
  custom: {
    50: '#d5736c',
    500: '#b73035',
    950: '#000000',
  },
}

SCSS

$custom: #b73035;
$custom-light: #d5736c;
$custom-dark: #000000;

JSON

{
  "hex": "#b73035",
  "rgb": {
    "r": 183,
    "g": 48,
    "b": 53
  },
  "hsl": {
    "h": 357.778,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52002,
    "c": 0.17144,
    "h": 23.7
  },
  "luminance": 0.12438
}

Semantic roles & 50–950 ramp

primary

#B73035

secondary

#7BC8C5

accent

#E2DC46

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160907

muted

#847B7A

Preview Lab

Preview with #B73035

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →